Home / 102,584.10-153,876.15-83,921.70

Finding the Fourth Proportional to 102,584.10, 153,876.15 and 83,921.70

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Solution

The fourth proportional to 102,584.10, 153,876.15 and 83,921.70 is: 125,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,584.10 : 153,876.15 = 83,921.70 : x
  2. Step 2: Convert to fraction form
    102,584.10/153,876.15 = 83,921.70/x
  3. Step 3: Cross multiply
    102,584.10x = 153,876.15 × 83,921.70
  4. Step 4: Simplify right side
    102,584.10x = 12,913,548,097.46
  5. Step 5: Solve for x
    x = 12,913,548,097.46/102,584.10
  6. Step 6: Final answer
    x = 125,882.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.